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…s other join conjuncts (apache#41674) Support rewrite by materialized view when join has other join conjuncts Such as mv def is select l_orderkey, o_orderdate from lineitem inner join orders on l_orderkey = o_orderkey and l_shipdate <= o_orderdate inner join partsupp on ps_partkey = l_partkey and l_orderkey + o_orderkey != ps_availqty; The query can be rewtritten by mv sucessfully when has not equal conjuncts in join l_shipdate <= o_orderdate` and `ps_partkey = l_partkey and l_orderkey + o_orderkey != ps_availqty; select l_orderkey, o_orderdate from lineitem inner join orders on l_orderkey = o_orderkey and l_shipdate <= o_orderdate inner join partsupp on ps_partkey = l_partkey and l_orderkey + o_orderkey != ps_availqty;
When shrinking the test data set, the corresponding out file data was not refreshed. As a result, the data in the out file was refreshed again. There are some tests that hit both materialized views as expected, modifying such corresponding cases.
…zed view (apache#44164) Problem Summary: When materialized view is rewritten, it would use the mv metadata. Should try to get read lock before use these metadata. or it would cause error. Such as mv def is as following CREATE MATERIALIZED VIEW mv1 BUILD IMMEDIATE REFRESH COMPLETE ON MANUAL DISTRIBUTED BY RANDOM BUCKETS 2 PROPERTIES ('replication_num' = '1') AS select o_orderdate, o_shippriority, o_comment, o.o_code as o_o_code, l_orderkey, l_partkey, l.o_code as l_o_code from orders_same_col o left join lineitem_same_col l on l_orderkey = o_orderkey left join partsupp on ps_partkey = l_partkey and l_suppkey = ps_suppkey; When handling transparent rewriting, a MV scan plan is used for the transparent rewrite. During the initialization of the scan plan, the partitions of the table are retrieved, so it is necessary to attempt to acquire a read lock on the table during initialization. If the read lock is not acquired, subsequent operations may add or delete partitions, and in the later processing of table partitions, calling get Partition may not retrieve the corresponding partition, leading to data errors.
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What problem does this PR solve?
6fdc8a5
#41674
7c45912
#43095
7aec6ff
#44164
Related PR: #xxx
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